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Science fiction is meant to depict a future where technology has advanced to the point that it might appear magical. What makes it compelling is the effort to offer a feasible explanation of how these futuristic achievements might one day become reality—even if they seem far beyond our current knowledge. Unfortunately, there are instances where sci-fi creators overlook this effort, veering into the realm of space or futuristic fantasy without attempting to justify the science behind it.
10. The Claim ‘Danger Is Real, Fear Is a Choice’ Is Scientifically Incorrect
After Earth (2013) is most memorable for starring Will Smith and for being the film that led Jaden Smith to step away from acting. He even thought about legally distancing himself from his father due to the disappointment of being involved in such a poorly received project. Despite its performance, it was a major sci-fi movie with significant input from Will Smith. The story revolves around Cypher Raige (Will Smith) and his son Kitai (Jaden Smith) stranded on a dangerous alien planet. The rest of the film follows their efforts to escape.
Cypher gets injured early in the story, and Kitai must step up, relying on his father's words of wisdom to navigate their predicament. One of the standout quotes from the trailer, aimed at encouraging Kitai to be brave, is ‘danger is real, fear is a choice.’ This phrase, which is featured in many of the movie's promos, contradicts established scientific principles.
While it is true that allowing fear to take control is a choice, fear itself is an instinctive response that we cannot simply control. Additionally, some critics pointed out that this particular non-scientific idea aligns with Scientology philosophy, suggesting that the filmmakers should have been more transparent about this connection.
9. A Wrinkle in Time Misunderstands the Concept of a Tesseract
A Wrinkle in Time (2018) is a well-known children’s book that has been adapted into a movie several times. The film frequently features the tesseract, or hypercube, as a method of traveling between dimensions. However, the concept is portrayed incorrectly throughout the story, resembling more of a wormhole than a true tesseract.
Madeleine L’Engle even describes a scenario involving a rope with a spider being pulled tight to travel from one point to another, which aligns more with the idea of a standard wormhole. To her credit, she is not the only one to misinterpret this concept, as even Marvel struggles with it at times.
The key difference is that a tesseract, or hypercube, refers to a specific fourth-dimensional cube that folds and unfolds to enable rapid movement from one location to another. While it could be considered a variant of a wormhole, it is a distinct concept altogether.
The tesseract is best depicted in the movie Interstellar (2014), where a wormhole is used to enter a tesseract. However, this differs from the traditional idea of a wormhole. Instead, it presents a unique fourth-dimensional space, which resembles a cube-like structure.
8. The Star Wars Parsec Error Has Led to Multiple Retcons
Star Wars (1977) has always sparked debate over whether it truly qualifies as science fiction. Some argue that the technology in most sci-fi is so advanced that the explanations are largely superficial, while others believe that at least some effort should be made to explain the technology. Star Wars, however, makes minimal attempts to do so. The most debated point is Han Solo's claim that the Millennium Falcon can complete the Kessel Run in less than twelve parsecs.
Critics quickly pointed out that parsecs measure distance, not time, so Han’s claim seemed illogical. This sparked such a widespread debate that in the old expanded universe, a series of books about Han Solo was created to provide an explanation for this mistake.
The explanation for Han's boast was that completing the Kessel Run in fewer parsecs meant taking a quicker but riskier route, showcasing one’s piloting prowess. Later, even after the expanded universe was discarded, this explanation was incorporated into the new Han Solo film.
7. Futurama’s Heads in Jars Make Sense Until They Don’t
Futurama is a comedy and an animated series, but that doesn’t mean it isn’t also rooted in science fiction. Time travel forms the core of its plot, and the show’s sci-fi elements are a big part of its appeal. In many ways, it parodies Star Trek in its animated form. And though it’s a cartoon, the show takes pride in its explanations of scientific concepts.
This is precisely why it feels odd that when it comes to the concept of heads in jars—especially concerning individuals who should have been dead long before such technology even existed—the show fails to provide any substantial explanation. Time travel is involved, but unlike other time travel-related concepts in the series, this one remains unclear.
We are told that a man who now benefits from this technology invented it. It’s also mentioned that a certain powder is used to keep the heads alive, which seems to have some kind of time-travel influence. However, that still doesn’t explain how heads of deceased historical figures are preserved in jars, some from before the inventor’s time.
6. Regardless of the Path, the People in Wall-E Are Doomed
In Wall-E (2008), by the conclusion, the humans manage to override the autopilot, who is desperately trying to save them from Wall-E and return them to Earth… but this only leads to their impending doom. Though the ending may seem light-hearted and sweet, the reality is far more serious: these humans are in major trouble. They’ve spent generations on a space station, entirely dependent on robots for their every need. Over time, they’ve become obese, lazy, and spoiled—far from the ideal candidates to colonize a new planet.
It’s not simply their weight and laziness; it’s far worse. These humans have evolved into beings who float around on hover platforms, incapable of doing anything physically demanding. Such a drastic change in their biology can’t be undone in a short time, and they have no chance of surviving outside their pampered existence.
For starters, these people have evolved to spend nearly all their time sitting down, a lifestyle that would be immediately fatal to us. This indicates that they’ve undergone significant evolutionary changes, growing even further apart from the baseline human species over time.
5. We Should Be Thankful That The Matrix Robots Haven’t Realized We Make Terrible Batteries
In The Matrix (1999), robots win a war against humanity and take control of the world. According to Morpheus, the reason the robots don’t just kill everyone is because they use us as a power source—we’re essentially living batteries. This concept is both demeaning and terrifying, especially when paired with the unsettling image of thousands of robots harvesting humans for energy.
The problem with the plot of The Matrix is that it doesn’t hold up scientifically. Morpheus attempts to cover it by claiming that the process involves a 'form of fusion.' But in reality, the only way this scenario could work is if Earth had become so barren that the surviving humans were the only biological matter left. And even then, the fusion process mixed with their bodies would be the only means of sustaining life.
Even if we stretch the science to make it seem plausible, it still doesn’t add up. The method would be wildly inefficient, and it wouldn’t make sense for an advanced robotic civilization to use it, since the energy required to maintain it would exceed the energy gained, according to scientific principles.
4. Navigating an Asteroid Field Would Actually Be No Big Deal
In The Empire Strikes Back (1980), Han Solo famously demonstrates his reckless bravery by deciding to fly straight into an asteroid field, even when the odds were stacked against him so badly that he didn’t want to hear the calculations. Many of the TIE fighters sent after them are destroyed, making the scene dramatic and emphasizing how dangerous the situation is. However, this has fueled the argument that Star Wars isn't very scientifically accurate, as the idea is simply ridiculous.
Celestial bodies, due to the nature of gravity, don't clump together closely in an asteroid field. In fact, you could practically sleepwalk through one as a pilot. C-3PO’s warnings are completely wrong, and his constant fretting calls into question all of his usual concerns. The truth is, asteroids are spaced so far apart that there’s little to no risk in navigating an asteroid field.
3. The Scientists in Prometheus Are Bafflingly Stupid
In Prometheus (2012), the Alien film that isn’t actually an Alien movie, a group of scientists, funded by a wealthy corporation, travel to an alien planet. This planet holds the potential to reveal all sorts of artifacts, relics, or even clues to humanity's past or origins. Naturally, this sparks great enthusiasm among the crew. Excited by the possibilities, they immediately set off to explore, eager to uncover everything the planet has to offer.
Despite their excitement, you’d expect scientists to act more cautiously when on an unknown planet. However, these scientists seem completely unconcerned. They remove their helmets 'because the planet is terraformed,' despite the risk of contracting a foreign disease or introducing one to the planet.
Later, without using basic sterile techniques, one of the scientists touches a mysterious black alien substance, which ends up causing a series of catastrophic problems. The only reasonable explanation is that the corporation behind this mission sent in profit-driven scientists, entirely lacking the necessary competence, who are willing to risk everything for personal gain—because no true scientist would be this reckless.
2. Time Travel Writers Nearly Always Forget Linguistic Science
One of the most challenging aspects of time travel films isn't the time travel itself, but rather how effortlessly people seem to adapt to different historical periods. While many films may show a few humorous moments related to learning new slang or customs, even traveling back a mere hundred years would require more than just understanding language. For example, traveling to the era of Sherlock Holmes reveals that even if you could comprehend their words, the way they spoke would make it clear that you’d need considerable practice to blend in seamlessly.
The further back you go in time, the more difficult it becomes to fit in, even if you share a common language. Take the 15th century, for example, where people spoke an elaborate form of Middle English that would likely sound foreign to us today.
As time passed, the language gradually evolved and became more understandable, but this doesn’t mean it would be easy. Go back to around 1150 or earlier, and everyone would be speaking Old English, which would render communication virtually impossible.
1. The Editors of Independence Day Removed the Scene That Explained Its Most Notable Plot Hole
In the conclusion of *Independence Day* (1996), Jeff Goldblum teams up with Will Smith to destroy the alien spaceship by uploading a virus into it. Given that this was a time when computers were becoming more widespread, many tech experts had issues with this scene. They argued that a virus created by humans would never be compatible with an alien system, and that Goldblum wouldn't have had enough time to create such a virus, especially considering how late he joined the government's efforts.
The unfortunate part is that the writers were clearly aware of this potential issue, and they even included an early scene where Goldblum intercepts a signal from the aliens before the invasion, setting off his efforts to develop a way to counter their software. While this still may stretch the limits of believability, given that he’s an MIT genius and it’s a movie, at least the deleted scene would have provided some form of explanation.
